Thomas Aquinas, on Ps 52:2

“They are corrupted, and become abominable in iniquities: there is none that doth good.”

“"In the heart." There are two things that must be done concerning God, namely that the intellect be fixed inwardly upon the knowledge of God and that the affection tend toward God as toward its end. Hence he says he looks down in order to see "if there is understanding." And if it is understood of the just man, in sweetness correcting; but if it is understood of the wicked man, as it is said of him, "he would not understand in order to act well," so it is "seeking," namely, intending to bring him to himself. Ps.: "Seek the Lord, and your soul shall live," etc. But the Lord, looking down to see this, finds malice abounding.”

Imported from an open dataset — not yet checked against the printed edition.